package cn.itcast.bos.web.action.base;


import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import javax.persistence.criteria.CriteriaBuilder;
import javax.persistence.criteria.CriteriaQuery;
import javax.persistence.criteria.Join;
import javax.persistence.criteria.JoinType;
import javax.persistence.criteria.Predicate;
import javax.persistence.criteria.Root;

import org.apache.commons.lang3.StringUtils;
import org.apache.struts2.convention.annotation.Action;
import org.apache.struts2.convention.annotation.Namespace;
import org.apache.struts2.convention.annotation.ParentPackage;
import org.apache.struts2.convention.annotation.Result;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Scope;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.PageRequest;
import org.springframework.data.domain.Pageable;
import org.springframework.data.jpa.domain.Specification;
import org.springframework.stereotype.Controller;

import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionSupport;
import com.opensymphony.xwork2.ModelDriven;

import cn.itcast.bos.domain.base.Courier;
import cn.itcast.bos.service.base.CourierService;

@ParentPackage("json-default")
@Namespace("/")
@Scope("prototype")
@Controller
public class CourierAction extends BaseAction<Courier> {
	
	
	@Autowired
	private CourierService courierService;
	
	@Action(value="courier_save",results={@Result(name="success",
			location="./pages/base/courier.html",type="redirect")})
	public String save(){
		courierService.save(model);
		return SUCCESS;
	}
	private int page;
	private int rows;
	
	public void setPage(int page) {
		this.page = page;
	}

	public void setRows(int rows) {
		this.rows = rows;
	}



	@Action(value="courier_findcourier",results={@Result(name="success",type="json")})
	public String findCourier(){
		Specification<Courier> spec = new Specification<Courier>() {
			
			@Override
			public Predicate toPredicate(Root<Courier> root, 
					CriteriaQuery<?> query, CriteriaBuilder cb) {
				List<Predicate> list= new ArrayList<Predicate>();
				if(StringUtils.isNoneBlank(model.getCourierNum())){
					Predicate p1 = cb.equal(root.get("courierNum").as(String.class),
							model.getCourierNum());
					list.add(p1);
				}
				if(StringUtils.isNotBlank(model.getCompany())){
					Predicate p2 = cb.like(root.get("company").as(String.class),
							"%"+model.getCompany()+"%");
					list.add(p2);
				}
				if(StringUtils.isNotBlank(model.getType())){
					Predicate p3 = cb.equal(root.get("type").as(String.class),model.getType());
					list.add(p3);
				}
				//多表查询
				Join<Object, Object> join = root.join("standard",JoinType.INNER);
				if(model.getStandard() != null && StringUtils.isNotBlank(model.getStandard().getName())){
						Predicate p4 = cb.like(join.get("name").as(String.class), "%"+model.getStandard().getName()+"%");
						list.add(p4);
				}
				System.out.println(list.toArray());
				return cb.and(list.toArray(new Predicate[0]));
			}
		};
		Pageable pageable=new PageRequest(page-1, rows);
		Page<Courier> pageData=courierService.findByPage(spec,pageable);
		
		Map<String, Object> result=new HashMap<String,Object>();
		result.put("total", pageData.getTotalElements());
		result.put("rows", pageData.getContent());
		
		ActionContext.getContext().getValueStack().push(result);
		return SUCCESS;
	}

	private String ids;

	public void setIds(String ids) {
		this.ids = ids;
	}
	
	@Action(value="courier_delmatch",results={@Result(name="success",
			location="./pages/base/courier.html",type="redirect")})
	public String delMatch(){
		String[] str = ids.split(",");
		courierService.delMatch(str);
		return SUCCESS;
	}
	
	@Action(value="courier_findnoassociation",results={@Result(name="success",type="json")})
	public String findNoAssociation(){
		List<Courier> couriers=courierService.findNoAssociation();
		ActionContext.getContext().getValueStack().push(couriers);
		return SUCCESS;
	}
	private String courierNums;
	
		
	public void setCourierNums(String courierNums) {
		this.courierNums = courierNums;
	}

	@Action(value="courier_findByCourierNum",results={@Result(name="success",type="json")})
	public String findByCourierNum(){
		Courier courier=courierService.findByCourierNum(courierNums);
		ActionContext.getContext().getValueStack().push(courier);
		return SUCCESS;
	}
}
